As someone that is looking to invest in a new home, it is wise to meet with and interview several home builders. Each company is likely to offer you a variety of services, each a bit different. It pays to spend some time talking to several because it will allow you to find the best person for the job. Do not assume you know which the right company to go with is.
When working with a home builder, make sure that you look at and try to picture yourself in the floor plans. You may be able to work with them to adjust the floor plans to meet your specific needs. Although you will find that they look nice, you need to imagine yourself moving around the kitchen and living in your bedroom. Are you comfortable?